Hello,
up until now, ruote understood process definitions expressed in Ruby, in XML or
directly as trees (Ruby or JSON).
Thus, this Ruby process definition
---8<---
Ruote.process_definition 'test', :revision => '1.0' do
alpha
concurrence do
bravo :timeout => '2d'
charly
end
delta :task => 'final changes'
end
--->8---
would be equivalent to (Ruby array)
---8<---
['define', {'revision'=>'1.0', 'test'=>nil}, [
['alpha', {}, []],
['concurrence', {}, [
['bravo', {'timeout'=>'2d'}, []],
['charly', {}, []]]],
['delta', {'task'=>'final changes'}, []]]]
--->8---
or (JSON string)
---8<---
["define", {"revision":"1.0", "test":null}, [
["alpha", {}, []],
["concurrence", {}, [
["bravo", {"timeout":"2d"}, []],
["charly", {}, []]]],
["delta", {"task":"final changes"}, []]]]
--->8---
or (XML)
---8<---
<process-definition name='test' 'revision'='1.0'>
<alpha />
<concurrence>
<bravo timeout='2d' />
<charly />
</concurrence>
<delta task='final changes' />
</process-definition>
--->8---
The new "radial" process definition language looks like :
---8<---
process-definition test, revision: 1.0
alpha
concurrence
bravo timeout: 2d
charly
delta task: 'final changes'
--->8---
It's mostly the Ruby syntax, without the "do" and the "end", and attributes
that are expressed with the javascript 'lazy' syntax.
Since it accomodates Ruby-like and JSON-like styles, these are equivalent :
---8<---
bravo timeout: 2d
bravo "timeout": 2d
bravo 'timeout': 2d
bravo timeout: "2d"
bravo timeout: '2d'
--->8---
Attribute values can be expresses the JSON way or the Ruby way :
---8<---
charly info: { a: 'b', c: [ 1, 2, 3 ] }
charly info: { 'a' => 'b', 'c' => [ 1, 2, 3 ] }
# ...
--->8---
Comments start after the "#" sign.
Multiline strings are OK, they are delimited by ''' or """
It should accomodate a very relaxed style of writing.
The big minus point : your favourite text editor won't have a syntax file for
it.
Comments and questions are welcome,
--
John Mettraux - http://jmettraux.wordpress.com
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